Function cuvsMultiGpuIvfFlatExtend 

pub unsafe extern "C" fn cuvsMultiGpuIvfFlatExtend(
    res: cuvsResources_t,
    index: cuvsMultiGpuIvfFlatIndex_t,
    new_vectors_tensor: *mut DLManagedTensor,
    new_indices_tensor: *mut DLManagedTensor,
) -> cuvsError_t

@brief Extend a Multi-GPU IVF-Flat index

@param[in] res cuvsResources_t opaque C handle @param[in,out] index Multi-GPU IVF-Flat index to extend @param[in] new_vectors_tensor DLManagedTensor* new vectors to add @param[in] new_indices_tensor DLManagedTensor* new indices (optional, can be NULL) @return cuvsError_t